If you mean what they do in terms of healing certain diseases with the latest stem cells technology, I know several cases of almost miraculous results. Stem cells are the newest achievement in advanced medicine, and it is a natural approach to some of the most complicated medical problems. Not all the stem cells clinics are really professional but the one you mention has never had any problems. I read in the website  that they evaluate the candidates very carefully before accepting them into their clinic and not all applicants are accepted. In fact they are the first certified stem cells clinic in the Caribbean.